You are probably in a small minority. TACC and to a large extent Autosteer in highways works really really well in heavy, stop and go conditions.
Hmm.. if you are using Autosteer only in highways, as it is intended to be used, there is no way you will end up with the scenarios you described. Autosteer in AP1 works very well as long as you have clear lane markings. If you are in a region where the lanes are faded or confusing due to construction and still expect the car to steer, you are naive and clueless.
My experience of it trying to put me into an object were a mixture of those above situations. Many in fact were on freeways without construction and with clear lane markings.
Furthermore, in Driver's Ed, they taught us how to figure out where the lanes are supposed to be. This is back when painted lane markings were rare everywhere; even freeways expected you to figure out the lanes from the seams in the pavement or concrete, and crests of roads, and middle of roads, and the edges of the roads. People were better drivers back then, and had no problems staying in their lanes. I don't see why the Tesla can't do that just fine without any lane markings; all drivers used to do that when I was born and in High School and first got my license.
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Now, for entertainment: this was part of my regular commute today, only, it wasn't on my regular commute route, nor a regular commute experience:
I was to take Highway 17 from Mountain View to Aptos. Tesla-Waze would not start, and my phones were deep in my pocket, and I could risk pulling my back digging them out when sitting in the car. Tesla showed the route open to home.
Traffic from 85 via 17 to Los Gatos was very unusually light. I wondered what the problem was. Apparently, others had started their Waze app just fine.
The traffic stopped to a standstill on 17 in Los Gatos. I dug the phones out of my pocket, checked Waze, and noted that there was another "mudslide" on 17, "closing" it. The traffic was not moving at all. It baffled me entirely because I knew that coming in this morning Old Santa Cruz Hwy was open since I took it all the way; I could tell by the traffic speed that they were blocking that route. I thought they were being stupid by not letting us use Old Santa Cruz Hwy. I decided to U-turn and take 101. (I had to wait 30 minutes to crawl to a point where that was possible.)
By then, 101 traffic was showing double normal traffic. I took an alternate route down the valley toward Morgan Hill. All my mapping software told me to take 152 via Hecker Pass to Watsonville (city). I started out toward Watsonville Road area by Morgan Hill. I had a very nice drive by that reservoir that's out there. I think it's Uvas. The valleys into and out of that reservoir were flooded. At some point, the mapping software started to tell me not to take 152 to Hecker Pass any more. By the time I got to 152, CHP had just closed it (in the direction of Hecker Pass).
I took the next route. At first, it told me to take 152 to some fields on the way to Hollister then get back to 101 via 25. But, then it once again changed its mind. This time, I decided to follow its change of mind because the last time I didn't, I got turned away. At one point it was detouring me around 101 on a better faster route, which included one stretch of a few city streets that claimed a "33 minute delay" to go a mile or so. After realizing that was the
better route, I decided to instead go back to its first idea of a route, 152 to fields to 25 to 101. (To get there, I tried some through roads that had turned into not-through roads with huge heavy flowing rivers crossing them -- these were the carefully created rivers created by careful releases from reservoir dams, and this is what they considered a careful release for the conditions.) On the way to that route, I stopped at the Gilroy SuperCharger, found one that was doing the full 99kW, and got coffee (9 minutes). I then proceeded on that detour route, and arrived at a stop sign right before the above pictures. The first picture was where I was supposed to go. Everyone collected on either side, deciding whether to go, and deciding not to after some minutes of contemplation. This was high rush hour in
extremely insufficient capacity highways and freeways, and everyone in this region has pretty stressed requirements in their life, so the contemplations were real. That says a lot considering we all decided better of it and not to try after 3 to 6 minutes looking at it. The second picture depicts water flowing low enough that after watching about 40 other cars do it I realized I was able to safely make it across with my Tesla without it hitting the battery (I kept my door open to make certain it stayed low enough and went slow as hell). This is one case where having a Tesla, especially a Model S, especially without air suspension, was not the best of things.
I finally got to 25, dealt with another lower flood over that road (which was bidirectional, so all the exiting traffic that usually stacks up clogging 101 to get onto 25 was going
even slower than normal to deal with the little road flood, which was added to the double traffic with all the 17 detouring), got onto 101, and crawled (but moving) down (past a looky-loo at the other bridge that had all its railings on one side gone, causing a 10 mile backup on the North 101 side) to some more free flowing stuff, and proceeded on my way. This time, 129 was showing very heavily clogged up, so I decided to take my oldest of standby routes that always works, San Juan Road. Now, finally, all my apps and software and nav everywhere told me to take a turn off of San Juan Road and detour entirely around Watsonville, and I didn't even hit any slowdowns on San Juan Road. I did hit one slowdown on its route, but I got to free flowing traffic pretty soon, and was able to make it to Nob Hill, charge for 1.5 hours with Chademo (I was at 9% in Watsonville, and I wanted insurance from losing power at home), then arrive home 5 hours after I set out to go home, and about 4.25 hours after I usually get there.
Comments on Waze said they opened Old Santa Cruz Highway from 17 at around 5pm. I was there around 3pm. I could have sat in traffic for 2 hours, then gotten home at 6pm and save use, or do what I did, and get home around 7:30pm with almost a full charge. But, comments on Waze said it might be closed for a whole day at first, so I decided 101 was a safer path to take.
Had I dug the phones out of my pocket and checked Waze, I would have taken 101 to begin with, and probably missed most of the early traffic. Who knows -- maybe I could have been part of the 152 closure event. Maybe divine intervention.
Every bridge I crossed with water under it crossed a river with huge amounts of rapidly flowing water, or some type of nearly full waterway or valley. Thank god concrete is heavy and most bridges are rooted into the earth with large piers pounded into the ground locked in by rebar and concrete; otherwise, some of those bridges looked like they would have washed away in a lot of those places.
Had I had AP assistance features, I think I could have used it in the "faster" detour through Gilroy city roads to 101, and then on 101, or even just stayed on 101 for much more of its super slow or stopped portions. That would have been interesting, and might have been a very good use case for AP.
I'm going to go ahead and guess that AP would probably not have an excellent idea of what to do in those pictured roadways.
